1 Astrology
1.1 Origin
Southern and central Africa
Southern and central Africa
1.2 Color
Red, Yellow, orange
White, Colorless, Blue, Red, Green, Yellow, Violet, Black, Green, Red, Blue, White
1.3 Streak
1.4 For which Rashi?
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1.5 Planet
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1.6 Element of Planets
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1.7 How to Wear?
1.7.1 Finger
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1.7.2 Ring Metal
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1.8 Energy
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
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1.12 Birthstone
1.12.1 Planetary
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1.12.2 Talisman
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2 Physical Properties
2.1 Tenacity
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2.2 Solubility
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2.3 Durability
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2.4 Specific Gravity
2.5 Fracture
(e.g. graphite).
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
2.6 Cleavage
{010} Good
{???} Indistinct
2.7 Mohs Hardness
2.8 Chemical Composition
AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
3 Optical Properties
3.1 Luster
3.2 Pleochroism
Nearly colorless to pale golden yellowAnthony et al
Very strong: pale yellow colorless
3.3 Dispersion
3.4 Transparency
3.5 Refractive Index
2.538-2.7041.614-1.666
1
3.25
3.6 Optic Character
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3.7 Crystal System
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Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
3.8 Birefringence
3.9 Clarity
4 Benefits
4.1 Physical
4.1.1 Neurological
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4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
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4.1.5 Digestive
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4.2 Psychology
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4.3 Healing
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4.4 Qualities Associated
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